Hybrid Moiré Excitons and Trions in Twisted MoTe2-MoSe2 Heterobilayers

Zhao S, Huang X, Gillen R, Li Z, Liu S, Watanabe K, Taniguchi T, Maultzsch J, Hone J, Högele A, Baimuratov AS (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Nano Letters American Chemical Society

DOI: 10.1021/acs.nanolett.4c00541

Abstract

We report experimental and theoretical studies of MoTe2-MoSe2 heterobilayers with rigid moiré superlattices controlled by the twist angle. Using an effective continuum model that combines resonant interlayer electron tunneling with stacking-dependent moiré potentials, we identify the nature of moiré excitons and the dependence of their energies, oscillator strengths, and Landé g-factors on the twist angle. Within the same framework, we interpret distinct signatures of bound complexes among electrons and moiré excitons in nearly collinear heterostacks. Our work provides a fundamental understanding of hybrid moiré excitons and trions in MoTe2-MoSe2 heterobilayers and establishes the material system as a prime candidate for optical studies of correlated phenomena in moiré lattices.

Authors with CRIS profile

Roland Gillen Lehrstuhl für Experimentalphysik Janina Maultzsch Lehrstuhl für Experimentalphysik

Additional Organisation(s)

FAU Profilzentrum Licht.Materie.Quantentechnologien (FAU LMQ)

Involved external institutions

Ludwig-Maximilians-Universität (LMU) DE Germany (DE) Columbia University US United States (USA) (US) National Institute of Materials Science (NIMS) JP Japan (JP)

How to cite

APA:

Zhao, S., Huang, X., Gillen, R., Li, Z., Liu, S., Watanabe, K.,... Baimuratov, A.S. (2024). Hybrid Moiré Excitons and Trions in Twisted MoTe2-MoSe2 Heterobilayers. Nano Letters. https://doi.org/10.1021/acs.nanolett.4c00541

MLA:

Zhao, Shen, et al. "Hybrid Moiré Excitons and Trions in Twisted MoTe2-MoSe2 Heterobilayers." Nano Letters (2024).

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